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Installing IRF510 LTspice model help?

Discussion in 'Electronic Design' started by amdx, Mar 24, 2007.

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  1. amdx

    amdx Guest

    I found this IRF510 mosfet spice model on the IR site. ((see bottom of
    page))
    There seems to be 5 different models.
    I want to install an IRF510 model in
    C:\programfiles\LTC\SwCADIII\lib\cmp\standard.mos.
    While looking in this file, I see the model below.----

    ..model IRF1302 VDMOS(Rg=3 Vto=4 Rd=1.6m
    Rs=1.2m Rb=2m Kp=50 Cgdmax=5n Cgdmin=1n Cgs=2n Cjo=1n Is=160p
    mfg=International_Rectifier Vds=20 Ron=4m Qg=80n)

    This model doesn't have the same info as the one I downloaded from the IR
    site, which
    seems to have 5 different models.
    Is there a better model, (more similar to the one above) OR which of the
    models below
    should I pick MM, MD, MD1, MD2 or MD3?
    Again, my goal,
    I want to install an IRF510 model in
    C:\programfiles\LTC\SwCADIII\lib\cmp\standard.mos.
    Thanks, Mike



    ..SUBCKT irf510 1 2 3
    **************************************
    * Model Generated by MODPEX *
    *Copyright(c) Symmetry Design Systems*
    * All Rights Reserved *
    * UNPUBLISHED LICENSED SOFTWARE *
    * Contains Proprietary Information *
    * Which is The Property of *
    * SYMMETRY OR ITS LICENSORS *
    *Commercial Use or Resale Restricted *
    * by Symmetry License Agreement *
    **************************************
    * Model generated on Apr 24, 96
    * Model format: SPICE3
    * Symmetry POWER MOS Model (Version 1.0)
    * External Node Designations
    * Node 1 -> Drain
    * Node 2 -> Gate
    * Node 3 -> Source
    M1 9 7 8 8 MM L=100u W=100u
    * Default values used in MM:
    * The voltage-dependent capacitances are
    * not included. Other default values are:
    * RS=0 RD=0 LD=0 CBD=0 CBS=0 CGBO=0
    ..MODEL MM NMOS LEVEL=1 IS=1e-32
    +VTO=3.82703 LAMBDA=0 KP=2.48457
    +CGSO=1.72132e-06 CGDO=5.99235e-11
    RS 8 3 0.276929
    D1 3 1 MD
    ..MODEL MD D IS=6.52734e-11 RS=0.0458243 N=1.2565 BV=100
    +IBV=0.00025 EG=1.2 XTI=1 TT=0
    +CJO=2.98645e-10 VJ=0.774158 M=0.422859 FC=0.5
    RDS 3 1 4e+06
    RD 9 1 0.0673242
    RG 2 7 13.1694
    D2 4 5 MD1
    * Default values used in MD1:
    * RS=0 EG=1.11 XTI=3.0 TT=0
    * BV=infinite IBV=1mA
    ..MODEL MD1 D IS=1e-32 N=50
    +CJO=1.85121e-10 VJ=0.500044 M=0.651006 FC=1e-08
    D3 0 5 MD2
    * Default values used in MD2:
    * EG=1.11 XTI=3.0 TT=0 CJO=0
    * BV=infinite IBV=1mA
    ..MODEL MD2 D IS=1e-10 N=0.4 RS=3e-06
    RL 5 10 1
    FI2 7 9 VFI2 -1
    VFI2 4 0 0
    EV16 10 0 9 7 1
    CAP 11 10 3.40332e-10
    FI1 7 9 VFI1 -1
    VFI1 11 6 0
    RCAP 6 10 1
    D4 0 6 MD3
    * Default values used in MD3:
    * EG=1.11 XTI=3.0 TT=0 CJO=0
    * RS=0 BV=infinite IBV=1mA
    ..MODEL MD3 D IS=1e-10 N=0.4
    ..ENDS
     
  2. Jim Thompson

    Jim Thompson Guest

    The IRF1302 "model" is just that, a "model", Level=1, in other words,
    crap.

    ..SUBCKT IRF510 is a combination of various pieces in an attempt to fit
    saturation, linear and sub-threshold regions (maybe).

    It's _probably_ better than the IRF 1302 but I assure you it's still
    not very good.

    Win can fill you in... he's been in this boat many times.

    Some day users will make enough noise that discrete manufacturers will
    start using Level=7 extraction methods... in my IC libraries for a
    number of years now.



    ...Jim Thompson
     
  3. amdx

    amdx Guest

    My needs would be fulfilled with Level=1 model.
    Or if there is a better model I can put into,
    C:\programfiles\LTC\SwCADIII\lib\cmp\standard.mos.
    I'd like to have it.
    Thanks, Mike
     
  4. Jim Thompson

    Jim Thompson Guest

    Use the .SUBCKT representation.

    ...Jim Thompson
     
  5. amdx

    amdx Guest

    Can I install that in lib\cmp\standard.mos or must it be a Spice Directive?
     
  6. Jim Thompson

    Jim Thompson Guest

    I'm not familiar with LTSpice's library structure, but that sounds
    right, just "install" into or edit "standard.mos"

    Keep in mind that the netlist must call the device as X..., NOT M...

    Maybe Mikey could jump in here to make sure I don't screw you up?

    ...Jim Thompson
     
  7. Genome

    Genome Guest

    Like what Jim says........

    I thought we did this...... before for something similar.

    IR has a download somewhere that gives a whole bucket load of models for a
    whole shitload of their devices...... SIGH......

    I'll tell you what.... I've just dropped a fart and that chicken breast,
    olive oil, curry powder, mixed herbs, coarse ground black pepper, soy sauce,
    leave to soak, fry off, add tomatoes and a mug of bisto chicken gravy along
    with one of those Amoy things, simmer for a long while and add to basmati
    rice has worked it's way through through my body and smells Pretty Damn
    Fucking Good!

    I want another one.....

    DNA
     

  8. Hello Mike,

    You can only add ".model"-MOSFETS to this file, but no subcircuits.
    VDMOS is a new model type only available in LTspice. It's especially
    for the power MOSFETS which are VDMOS-transistors.
    This VDMOS model makes simulations of power-MOSFETs much
    faster than with subcircuit-models.
    There is nothing to pick. You should use the whole subcircuit or
    you have to make a VDMOS-model. There is a VDMOS-tool
    available in the LTspice Yahoo group to make such models.
    I recommend you keep the model file always in the directory
    where you have the schematic.


    The instructions for the subcircuit-MOSFET.
    ---------------------------------------------
    Don't touch the libraries of LTspice!

    1.
    LTspice accepts a ".include"-statement to add a model, a subcircuit
    or any SPICE circuit to your schematic or netlist.

    ..include my_model_file

    2.
    Copy the IRF510-subcircuit into a file and save it in the folder
    where you have your schematic.

    3.
    Add a "nmos" symbol to your schematic.

    4.
    Change the symbol to a subcircuit symbol.
    Ctrl-RightMouseClick on the instance (placed symbol).
    Change the Prefix of this instance from PREFIX:MN to PREFIX:X.
    OK

    5.
    Change the value NMOS to IRF510.

    6.
    Draw your circuit around the transistor.

    7.
    Press RUN to start the simulation.


    Yes, it's so easy that most people can't believe it!

    If you have a basic SPICE model (.model .....) then no change
    is required in the nmos-symbol.

    Best regards,
    Helmut


    ..SUBCKT irf510 1 2 3
    **************************************
    * Model Generated by MODPEX *
    *Copyright(c) Symmetry Design Systems*
    * All Rights Reserved *
    * UNPUBLISHED LICENSED SOFTWARE *
    * Contains Proprietary Information *
    * Which is The Property of *
    * SYMMETRY OR ITS LICENSORS *
    *Commercial Use or Resale Restricted *
    * by Symmetry License Agreement *
    **************************************
    * Model generated on Apr 24, 96
    * Model format: SPICE3
    * Symmetry POWER MOS Model (Version 1.0)
    * External Node Designations
    * Node 1 -> Drain
    * Node 2 -> Gate
    * Node 3 -> Source
    M1 9 7 8 8 MM L=100u W=100u
    * Default values used in MM:
    * The voltage-dependent capacitances are
    * not included. Other default values are:
    * RS=0 RD=0 LD=0 CBD=0 CBS=0 CGBO=0
    ..MODEL MM NMOS LEVEL=1 IS=1e-32
    +VTO=3.82703 LAMBDA=0 KP=2.48457
    +CGSO=1.72132e-06 CGDO=5.99235e-11
    RS 8 3 0.276929
    D1 3 1 MD
    ..MODEL MD D IS=6.52734e-11 RS=0.0458243 N=1.2565 BV=100
    +IBV=0.00025 EG=1.2 XTI=1 TT=0
    +CJO=2.98645e-10 VJ=0.774158 M=0.422859 FC=0.5
    RDS 3 1 4e+06
    RD 9 1 0.0673242
    RG 2 7 13.1694
    D2 4 5 MD1
    * Default values used in MD1:
    * RS=0 EG=1.11 XTI=3.0 TT=0
    * BV=infinite IBV=1mA
    ..MODEL MD1 D IS=1e-32 N=50
    +CJO=1.85121e-10 VJ=0.500044 M=0.651006 FC=1e-08
    D3 0 5 MD2
    * Default values used in MD2:
    * EG=1.11 XTI=3.0 TT=0 CJO=0
    * BV=infinite IBV=1mA
    ..MODEL MD2 D IS=1e-10 N=0.4 RS=3e-06
    RL 5 10 1
    FI2 7 9 VFI2 -1
    VFI2 4 0 0
    EV16 10 0 9 7 1
    CAP 11 10 3.40332e-10
    FI1 7 9 VFI1 -1
    VFI1 11 6 0
    RCAP 6 10 1
    D4 0 6 MD3
    * Default values used in MD3:
    * EG=1.11 XTI=3.0 TT=0 CJO=0
    * RS=0 BV=infinite IBV=1mA
    ..MODEL MD3 D IS=1e-10 N=0.4
    ..ENDS
     
  9. Ban

    Ban Guest

    I hope you had enough garlic in it to round up the fragrance.
    Wait--- there might be a market for it. "Genomes Excrement" by Armani. A
    unique composition of finest prime materials processed strictly
    biologically.
     
  10. John Fields

    John Fields Guest

     
  11. Jim Thompson

    Jim Thompson Guest

    In this case I couldn't find a place to put a cogent break.

    ...Jim Thompson
     
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